A camera uses sonar to detect the distance to the object you are taking a picture of so it can focus the lens properly.
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it was called the meteor
A Leica film camera
Assuming you mean to use the camera without glasses, a diopter attachment for the camera eyepiece. Visit a real camera store to inquire and/or check the camera manual to see if the manufacturer lists these as an accessory.
She used a large format camera.
She uses a Hasselbad digital camera.